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Clojure Web Apps Explained: Building from First Principles with Ring and Jetty

Overview of Clojure web application stack and building a minimal Ring-Jetty app

From Hacker News Original Article Hacker News Discussion

This detailed post explains how Clojure web development differs from traditional monolithic frameworks by emphasizing composition of libraries and first principles. It walks through building a minimal Clojure web app using Ring and Jetty, illustrating middleware and routing fundamentals.

Why it matters: Clojure’s library-centric approach offers deep control and flexibility, avoiding rigid architecture constraints typical in conventional frameworks.

The big picture: Instead of monolithic frameworks, Clojure web apps assemble modular, composable libraries, requiring developers to understand HTTP abstraction, middleware, and routing from the ground up.

The stakes: While flexible, this approach can increase maintenance complexity and dependency management challenges, especially for hobby projects with many moving parts.

Commenters say: Readers appreciate the clear, foundational explanation and Clojure’s unique approach but note that managing numerous dependencies and updates can be tedious compared to more integrated frameworks.